反应条件
hydrogenchloride; sec.-butyllithium in neat (no solvent) addn. of s-butyllithium to dibenzothiohene at -78°C under N2 overa few min, addn. of trimethyl borate at this temp., warming to room tem p., cooling in ice bath, addn. of 1 N HCl, extn. with 1 N NaOH, washing with ether, addn. of 3 N HCl; filtration, washing the ppt. with water, diethyl ether;
参考文献
Helvetica Chimica Acta, , vol. 85, # 11 p. 3748 - 3772
